Periods
| Period | Time range |
|---|---|
| Data extraction period | 2020-03-05 - 2022-05-20 |
| Enrollment period | 2021-01-01 - 2021-08-31 |
| Study period | 2021-01-01 - 2022-08-31 |
Study population and enrollment
Description of the study population: table 1
| Intervention group (N=4730) |
Control group (N=4730) |
P-value | |
|---|---|---|---|
ᵃ5-year age groups | |||
| sex_cd | |||
| Mean (SD) | 1.47 (0.536) | 1.48 (0.534) | 0.701 |
| Median [Min, Max] | 1.00 [0, 2.00] | 1.00 [0, 2.00] | |
| age_cdᵃ | |||
| Mean (SD) | 11.7 (2.95) | 11.7 (2.95) | 0.829 |
| Median [Min, Max] | 12.0 [2.00, 18.0] | 12.0 [2.00, 18.0] | |
| residence_area_cd | |||
| 731 | 643 (13.6%) | 670 (14.2%) | 0.31 |
| 732 | 692 (14.6%) | 644 (13.6%) | |
| 733 | 3395 (71.8%) | 3416 (72.2%) | |
| institutionalized_bl | |||
| Yes | 128 (2.7%) | 127 (2.7%) | 1 |
| No | 4602 (97.3%) | 4603 (97.3%) | |
| foreign_bl | |||
| Yes | 711 (15.0%) | 711 (15.0%) | 1 |
| No | 4019 (85.0%) | 4019 (85.0%) | |
| pregnancy_bl | |||
| Yes | 55 (1.2%) | 62 (1.3%) | 0.577 |
| No | 4675 (98.8%) | 4668 (98.7%) | |
| essential_worker_bl | |||
| Yes | 127 (2.7%) | 137 (2.9%) | 0.574 |
| No | 4603 (97.3%) | 4593 (97.1%) | |
| comorbidities_bl | |||
| Yes | 2154 (45.5%) | 2161 (45.7%) | 0.901 |
| No | 2576 (54.5%) | 2569 (54.3%) | |
| immunestatus_bl | |||
| Yes | 1302 (27.5%) | 1303 (27.5%) | 1 |
| No | 3428 (72.5%) | 3427 (72.5%) | |
Tables
The individuals in the imported dataset are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 639 | 6010 | 6649 |
| Confirmed case | 361 | 2990 | 3351 |
| Total | 1000 | 9000 | 10000 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 0.9202832
The individuals eligible for analysis are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 620 | 5739 | 6359 |
| Confirmed case | 329 | 2639 | 2968 |
| Total | 949 | 8378 | 9327 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 0.9085929
The matched individuals are counted by ‘fully_vaccinated_bl’ and ‘confirmed_case_bl’.
| Not completed a primary vaccination schedule | Completed a primary vaccination schedule | Total | |
|---|---|---|---|
| No confirmed case | 329 | 4562 | 4891 |
| Confirmed case | 131 | 1983 | 2114 |
| Total | 460 | 6545 | 7005 |
Ratio = \(\frac{(\frac{confirmed \ cases}{non-vaccinated \ individuals})} {(\frac{confirmed \ cases}{vaccinated \ individuals})}\) = 1.063897